<template>
    <div>
        <div class="search">
            <input v-model="keyWord" class="search-input" type="text" placeholder="输入城市名或拼音">
        </div>
        <div class="search-content" ref="search" v-show="keyWord">
            <ul>
                <li class="search-item border-bottom" v-for="item of list" :key="item.id" @click="handleCityClick(item.name)">{{item.name}}</li>
                <li class="search-item border-bottom" v-show="hasNoData">
                    没有找到匹配数据
                </li>
            </ul>
        </div>
    </div>
</template>

<script>
import Bscroll from 'better-scroll'
import { mapMutations } from 'vuex'

export default {
    name: 'CitySearch',
    data() {
        return {
            keyWord: '',
            list: [],
            timer: null
        }
    },
    props: {
        cities: Object
    },
    watch: {
        keyWord() {
            if (this.timer) {
                clearTimeout(this.timer)
            }
            if (!this.keyWord) {
                this.list = [];
                return
            }
            this.tomer = setTimeout(() => {
                const result = []
                for (let i in this.cities) {
                    this.cities[i].forEach(value => {
                        if (value.spell.indexOf(this.keyWord) > -1 || value.name.indexOf(this.keyWord) > -1) {
                            result.push(value)
                        }
                    });
                }
                this.list = result
            }, 100)
        }
    },
    mounted() {
        this.scroll = new Bscroll(this.$refs.search)
    },
    computed: {
        hasNoData() {
            return !this.list.length
        }
    },
    methods: {
        handleCityClick(city) {
            // this.$store.commit('changeCity', city)
            this.changeCity(city)
            this.$router.push('/')
        },
        ...mapMutations(['changeCity'])
    }
}
</script>

<style lang="stylus" scoped>
    @import '~@/assets/styles/varibles.styl';
    .search
        height: .72rem
        background: $bgColor
        padding: 0 .1rem
        .search-input
            box-sizing: border-box
            height: .62rem
            line-height .62rem
            width: 100%
            text-align: center
            border-radius: .06rem
            color: #666
            padding: 0 .1rem
    .search-content
        position absolute
        top 1.58rem
        left 0
        right 0
        bottom 0
        overflow hidden
        background-color #eee
        z-index 1
        .search-item
            line-height .62rem
            padding-left .2rem
            color #666
            background-color #fff


</style>